RESUMEN
Background: Major abdominal oncology surgery is associated with substantial postoperative loss of functional capacity, and exercise may be an effective intervention to improve outcomes. The aim of this study was to assess efficacy, feasibility and safety of a supervised postoperative exercise programme. Methods: We performed a single-blind, parallel-arm, randomized trial in patients who underwent major abdominal oncology surgery in a tertiary university hospital. Patients were randomized to an early mobilization postoperative programme based on supervised aerobic exercise, resistance and flexibility training or to standard rehabilitation care. The primary outcome was inability to walk without human assistance at postoperative day 5 or hospital discharge. Results: A total of 108 patients were enrolled, 54 into the early mobilization programme group and 54 into the standard rehabilitation care group. The incidence of the primary outcome was nine (16.7%) and 21 (38.9%), respectively (P=0.01), with an absolute risk reduction of 22.2% [95% confidence interval (CI) 5.9-38.6] and a number needed to treat of 5 (95% CI 3-17). All patients in the intervention group were able to follow at least partially the exercise programme, although the performance among them was rather heterogeneous. There were no differences between groups regarding clinical outcomes or complications related to the exercises. Conclusions: An early postoperative mobilization programme based on supervised exercises seems to be safe and feasible and improves functional capacity in patients undergoing major elective abdominal oncology surgery. However, its impact on clinical outcomes is still unclear. Clinical trial registration: NCT01693172.
Asunto(s)
Neoplasias Abdominales/rehabilitación , Neoplasias Abdominales/cirugía , Terapia por Ejercicio/métodos , Tolerancia al Ejercicio , Evaluación de Programas y Proyectos de Salud/métodos , Anciano , Estudios de Factibilidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Método Simple Ciego , Resultado del TratamientoRESUMEN
BACKGROUND: There are no studies that describe the impact of the cumulative fluid balance on the outcomes of cancer patients admitted to intensive care units ICUs. The aim of our study was to evaluate the relationship between fluid balance and clinical outcomes in these patients. METHOD: One hundred twenty-two cancer patients were prospectively evaluated for survival during a 30-day period. Univariate (Chi-square, t-test, Mann-Whitney) and multiple logistic regression analyses were used to identify the admission parameters associated with mortality. RESULTS: The mean cumulative fluid balance was significantly higher in non-survivors than in survivors [1675 ml/24 h (471-2921) vs. 887 ml/24 h (104-557), P = 0.017]. We used the area under the curve and the intersection of the sensibility and specificity curves to define a cumulative fluid balance value of 1100 ml/24 h. This value was used in the univariate model. In the multivariate model, the following variables were significantly associated with mortality in cancer patients: the Acute Physiology and Chronic Health Evaluation II score at admission [Odds ratio (OR) 1.15; 95% confidence interval (CI) (1.05-1.26), P = 0.003], the Lung Injury Score at admission [OR 2.23; 95% CI (1.29-3.87), P = 0.004] and a positive fluid balance higher than 1100 ml/24 h at ICU [OR 5.14; 95% CI (1.45-18.24), P = 0.011]. CONCLUSION: A cumulative positive fluid balance higher than 1100 ml/24 h was independently associated with mortality in patients with cancer. These findings highlight the importance of improving the evaluation of these patients' volemic state and indicate that defined goals should be used to guide fluid therapy.
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Enfermedad Crítica/mortalidad , Neoplasias/mortalidad , Neoplasias/fisiopatología , Equilibrio Hidroelectrolítico/fisiología , APACHE , Lesión Renal Aguda/mortalidad , Lesión Renal Aguda/fisiopatología , Anciano , Área Bajo la Curva , Femenino , Humanos , Intubación Intratraqueal , Tiempo de Internación , Modelos Logísticos , Masculino , Persona de Mediana Edad , Insuficiencia Multiorgánica/mortalidad , Insuficiencia Multiorgánica/fisiopatología , Valor Predictivo de las Pruebas , Respiración Artificial , Choque Séptico/etiología , Choque Séptico/fisiopatología , Sobrevida , Resultado del Tratamiento , Vasoconstrictores/uso terapéuticoRESUMEN
BACKGROUND: Nosocomial infections (NIs) are one of the most important causes of morbidity in neonatal intensive care units (NICUs). The aim of this study was to identify risk factors (RFs) for NIs among critically ill newborn patients in a Brazilian NICU. METHODS: This 5-year prospective cohort study in an 8-bed NICU included all infants born in the hospital and admitted to the NICU from 1993 to 1997. Exposure variables were maternal and newborn data prospectively collected from patient records. Univariate and multivariate analyses were used to determine independent RFs associated with NIs. RESULTS: Univariate analysis indicated gestational age, congenital abnormality, premature rupture of membranes, maternal illness, birth weight, mechanical ventilation, central venous catheter, total parenteral nutrition, peripheral venous catheter, and length of stay as possible RFs. Multivariate analysis identified 5 independent RFs for NIs: premature rupture of membranes (hazard ratio [HR] = 1.51 [95% CI, 1.15-1.99]), maternal disease (HR = 1.57 [95% CI, 1.18-2.07]), mechanical ventilation (HR = 2.43 [95% CI, 1.67-3.53]), central venous catheter (HR = 1.70 [95% CI, 1.21-2.41]), and total parenteral nutrition (HR = 4.04 [95% CI, 2.61-6.25]). CONCLUSION: The recognition of RFs for NIs is an important tool for the identification and development of interventions to minimize such risks in the NICU.
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Enfermedad Crítica , Infección Hospitalaria/etiología , Enfermedades del Recién Nacido , Unidades de Cuidado Intensivo Neonatal , Análisis de Varianza , Peso al Nacer , Brasil/epidemiología , Catéteres de Permanencia/efectos adversos , Infección Hospitalaria/epidemiología , Infección Hospitalaria/prevención & control , Femenino , Edad Gestacional , Hospitales Generales , Humanos , Incidencia , Recién Nacido , Enfermedades del Recién Nacido/terapia , Control de Infecciones/métodos , Control de Infecciones/normas , Tiempo de Internación/estadística & datos numéricos , Masculino , Nutrición Parenteral Total/efectos adversos , Embarazo , Complicaciones del Embarazo , Modelos de Riesgos Proporcionales , Estudios Prospectivos , Respiración Artificial/efectos adversos , Factores de RiesgoRESUMEN
BACKGROUND: Late prognosis after infective endocarditis has not been systematically studied in large series of patients with different underlying heart conditions in recent years. METHODS: We studied an inception cohort study of 420 patients discharged after treatment of endocarditis from a university tertiary care hospital. The patients were aged 34.2+/-17.2 years (mean +/- SD), ranging from 2 months to 83 years; 270 (64.3%) were men and 150 (35.7%) were women. Mean follow-up was 6.1+/-4.3 years for survivors and 3.7+/-3.7 years for the patients who died during the follow-up. We studied the frequency and risk factors for relapses and recurrences of endocarditis, cardiac valve replacements, and deaths during the follow-up. Statistical analysis was performed through comparison of groups, of event-free survival, and risk ratios. RESULTS: Relapses were observed in 14 (3.3%) patients. There was one recurrence of endocarditis in 48 (11.4%) patients, two (0.5%) in 2 patients, three in 1 patient (0.2%), and five (0.2%) in 1 patient. Valve replacement was performed in 83 (19.7%) patients. Ninety-eight (12.3%) patients died. Risk factors for recurrent endocarditis were increasing age (risk ratio 1.02) and male sex (risk ratio 1.61). Risk factors for valve replacement were recurrent endocarditis (risk ratio 1.62) and prosthetic valve endocarditis (risk ratio 1.61). Risk factors for death were increasing age (risk ratio 1.03) and recurrent endocarditis (risk ratio 2.06). CONCLUSIONS: The long-term event-free survival for patients who survived their first episode of endocarditis was low. Recurrent endocarditis, prosthetic valve endocarditis, and increasing age contributed to the high rate of events during the follow-up.
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Endocarditis/mortalidad , Endocarditis/cirugía , Prótesis Valvulares Cardíacas , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Niño , Preescolar , Estudios de Cohortes , Endocarditis/microbiología , Femenino , Estudios de Seguimiento , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Recurrencia , Factores de TiempoRESUMEN
UNLABELLED: Portal hypertension is associated to the development of portosystemic collateral veins, particularly the paraumbilical vein. PURPOSE: To evaluate the biometric and hemodynamic characteristics of the portal vessels related to the presence of a patent paraumbilical vein, in the setting of portal hypertension secondary to hepatosplenic schistosomiasis. METHODS: 75 patients with portal hypertension secondary to hepatosplenic schistosomiasis were evaluated by Doppler US. The patients were studied based on the presence (group B) or not (Group A) of a patent paraumbilical vein. The diameter and blood flow velocity of the portal vessels and of the paraumbilical vein were recorded. RESULTS: The paraumbilical vein was detected in 17.33% of patients. The results showed an increase of the diameter of the main and left portal vessels whenever a patent paraumbilical vein was present (portal vein: A = 1.14 +/- 0.29 cm/B = 1.33 +/- 0.16 cm; left branch: A = 0.95 +/- 0.25 cm/B = 1.30 +/- 0.24 cm). The mean blood flow velocity was also increased in the portal trunk (A = 15.96 +/- 6.17 cm/sec/B = 19.82 +/- 6.26 cm/sec) and in the left portal branch (A = 14.77 +/- 4.29 cm/sec/B = 19.92 +/- 6.88 cm/sec). CONCLUSION: The presence of a patent paraumbilical vein is related to significant biometric and hemodynamic variations in the portal venous system, in the setting of portal hypertension secondary to hepatosplenic schistosomiasis.
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Circulación Colateral , Hipertensión Portal/diagnóstico por imagen , Ultrasonografía Doppler , Venas/diagnóstico por imagen , Hemodinámica , Humanos , Hipertensión Portal/etiología , Hipertensión Portal/fisiopatología , Parasitosis Hepáticas/complicaciones , Vena Porta/diagnóstico por imagen , Estudios Prospectivos , Esquistosomiasis mansoni/complicacionesRESUMEN
The description of a new index, the renal-segmental ratio (RSR), and the comparison of its performance with other conventional Doppler parameters for the detection of renal artery stenosis (RAS). A total of 96 renal units were studied with angiography and colour Doppler ultrasound (US) independently. The Doppler parameters applied were: 1. renal artery peak systolic velocity (RE-PSV), 2. renal-aortic ratio (RAR), 3. early systolic acceleration (ESA), and 4. renal-segmental ratio (RSR). The angiographic study was used as the "gold standard" for the identification of > or = 50% RAS. The results indicate that RSR (sensitivity: 93.33%, specificity: 89.47%) and RE-PSV (sensitivity: 83.33%, specificity: 89.47%) were the best criteria for RAS diagnosis (p values <0.05). The results show that colour Doppler US is a reliable diagnostic modality for RAS diagnosis. The new index (RSR) improves the effectiveness of the method.
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Obstrucción de la Arteria Renal/diagnóstico por imagen , Arteria Renal/diagnóstico por imagen , Ultrasonografía Doppler en Color , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Angiografía de Substracción Digital , Velocidad del Flujo Sanguíneo , Femenino , Humanos , Modelos Logísticos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Curva ROC , Sensibilidad y Especificidad , Estadísticas no ParamétricasRESUMEN
BACKGROUND: Left ventricular partial ventriculectomy (LVPV), an unconventional operation to reverse some aspects of the cardiac remodeling, has been proposed for treatment of congestive heart failure. METHODS AND RESULTS: Twenty-four patients (age 46+/-9 years) referred to heart transplantation underwent isolated LVPV or LVPV associated to valve annuloplasty. Patients were in New York Heart Association functional class IV (15) or III (9) due to idiopathic dilated cardiomyopathy. Functional class, left and right ventricular ejection fraction (radionuclide), left ventricular end-diastolic and end-systolic diameter, and fractional shortening (by echocardiography), and hemodynamic variables were determined. The mean follow-up was 474+/-174 days. Survival at 30, 180, and 365 days was 92+/-6%, 67+/-10%, and 63+/-10%, respectively. Nine patients died, and the cause was associated with arrhythmias in 4 patients. The left ventricular end-diastolic diameters before and at 23+/-14 days, 188+/-27, and 365+/-14.8 days of follow-up were 82.6+/-9.8, 68.9+/-7.8, 69.9+/-6.9, and 70+/-5.3 mm, respectively (P=0.0001). The left ventricular end-systolic diameters were 73.5+/-7.4, 55.9+/-7.5, 57.4+/-7.8, and 55+/-5.5 mm (P=.0001). Fractional shortenings were 13+/-3, 19+/-4, 18+/-5, and 22+/-2%, respectively (P=.0001). The left ventricular ejection fractions before and 18+/-14, 188+/-26, and 369+/-3.6 days after the surgery were 17.2+/-4.7, 24.5+/-8.3, 24.5+/-7.4, and 23.7+/-6.1%, respectively (P=.004). The right ventricular ejection fractions were 20.5+/-6.2, 27.9+/-8.4, 28.2+/-10.1, and 27.4+/-7.3% (P=0.02). Pressures were unchanged. There was improvement in cardiac index from 2.11+/-0.52 to 2.53+/-0.64 L/min (P=.0037). Norepinephrine blood levels reduced from 702+/-258 to 439+/-307 pg/mL (P=.001). Most surviving patients presented improvement in functional class. Sustained ventricular tachycardias were observed in 9 patients (38%). CONCLUSIONS: The left ventricular partial ventriculectomy may improve the left and right ventricular function, functional class, and cardiac output. These initial results were associated to high prevalence of sustained ventricular tachycardia. The ventriculectomy introduces the concept that reduction of left ventricular chamber diameter may improve cardiac function in heart failure. Further progress is necessary to improve the results and evaluate its proper role in the management of heart failure.
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Cardiomiopatía Dilatada/cirugía , Trasplante de Corazón , Ventrículos Cardíacos/cirugía , Función Ventricular Izquierda , Adulto , Femenino , Hemodinámica , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Taquicardia Ventricular/etiologíaRESUMEN
OBJETIVO - Analisar a perda do diâmetro luminal mínimo (DLM) nos primeiros 15 min após angioplastia coronária por balão (AC), quantificando sua influência na reestenose coronária. MÉTODOS - Foram estudadas, prospectivamente, 86 AC em 86 pacientes. Os pacientes foram divididos em dois subgrupos de acordo com apresença ou ausência de reestenose; o 1o. grupo compreendendo as 31 lesöes com reestenose e o 2o. as 55 lesöes sem reestenose. RESULTADOS - A análise univariada mostrou que a relação balão/artéria foi menor no grupo com reestenose (0,92ñ0,01 vs 1,00ñ0,11, P=.003). O grupo com reestenose apresentou maior recolhimento elástico absoluto e relativo no 1o. min (0,79ñ0,54 vs 0,68ñ0,59mm; P=0,007 e 32,04ñ14,27 vs 22,15ñ16,25 por cento; P=0,006.) e no controle angiográfico do 15o. min (1,25ñ0,59 vs 0,90ñ0,65mm, P=0,017 e 46,75ñ15,69 vs 29,18ñ17,84 por cento , P<0,00001)do que o grupo sem reestenose. O DLM no 1o. min foi menor no grupo com reestenose (2,15ñ0,42 vs 2,43ñ0,58mm; P=0,002). O grupo com reestenose apresentou uma maior perda precoce no DLM (0,46ñ0,34 vs 0,22ñ0,35mm, P=0,004). Este decréscimo na luz do vaso determinou que o DLM do 15o. min fosse ainda menor no grupo com reestenose (1,69ñ0,48 vs 2,20ñ0,61; P=0,0001). Da análise multivariada, entretanto, identificou-se apenas a relação balão/artéria e o DLM do 15o. min como os dois fatores independentes mais relacionados à reestenose. CONCLUSÄO - O recolhimento elástico e a perda do DLM ao longo dos 15 min são fatoes diretamente relacionados à reestenose.Entretanto, a análise multivariada mostrou que a relação balão/artéria e o DLM de 15 min são os dois fatores independentes mais fortemente preditores de reestenose.
Asunto(s)
Humanos , Masculino , Anciano , Angioplastia Coronaria con Balón , Prueba de Esfuerzo , Cintigrafía , Cateterismo , Cuidados Posoperatorios , Factores de TiempoRESUMEN
In order to gain insight into the possible mechanisms involved in gallstone formation in colectomized ulcerative colitis patients, we studied gallbladder motility by means of ultrasonography in three groups of subjects: controls (N = 40) and ulcerative colitis patients without (N = 30) and with (N = 20) colectomy. Impaired gallbladder emptying after a liquid fatty meal stimulus was observed in ulcerative colitis patients with colectomy compared with those obtained in ulcerative colitis patients without colectomy and controls (P = 0.001). The maximum percentage of gallbladder emptying also, was significantly lower (59.8%) than those seen in ulcerative colitis patients without colectomy (74.5%) and controls (77.8%) (P = 0.001). Diminished gallbladder emptying with ensuing stasis might be a contributory factor to the increased prevalence of gallstones in colectomized patients.
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Colectomía/efectos adversos , Colitis Ulcerosa/cirugía , Vaciamiento Vesicular , Adulto , Colitis Ulcerosa/patología , Colitis Ulcerosa/fisiopatología , Femenino , Vaciamiento Gástrico , Humanos , MasculinoRESUMEN
PURPOSE: To evaluate the early luminal diameter loss in the first 15 min after percutaneous transluminal coronary angioplasty (PTCA) and its influence on coronary restenosis. METHODS: In a prospective study, we evaluated 86 patients. The patients were divided in two groups based on the presence or absence of coronary restenosis. Thirty one lesions developed restenosis and 55 lesions did not. RESULTS: Univariate analysis showed that balloon/artery ratio was lower in the group of restenosis (0.92 +/- 0.01 vs 1.00 +/- 0.11, P = .003). Absolute and relative elastic recoil at 1 min was greater in the group that developed restenosis (0.79 +/- 0.54 vs 0.68 +/- 0.59 mm; P = .007 and 32.04 +/- 14.27 vs 22.15 +/- 16.65%; P = .006). Similarly, absolute and relative elastic recoil at 15 min were greater in the group with restenosis (1.25 +/- 0.59 vs 0.90 +/- 0.65 mm, P = .017 e 46.75 +/- 15.69 vs 29.18 +/- 17.84%, P < .00001). Minimal luminal diameter (MLD) at 1 min was lower in the group with restenosis (2.15 +/- 0.42 vs 2.43 +/- 0.58 mm; P = .022). The very early loss was greater in the group with restenosis (0.46 +/- 0.34 vs 0.22 +/- 0.35 mm, P = .004). MLD at 15 min was lower in the group of restenosis than in the group without restenosis (1.69 +/- 0.48 vs 2.20 +/- 0.61; P = .0001). Multivariate analysis revealed balloon/artery ratio and MLD at 15 min as independent correlates of the late outcome. CONCLUSION: The late outcome of PTCA is influenced by elastic recoil and the early MLD loss after PTCA. However, the strongest and most important predictors of late outcome by multivariate analysis were balloon/artery ratio and MLD at 15 min.
Asunto(s)
Angioplastia Coronaria con Balón , Enfermedad Coronaria/terapia , Vasos Coronarios/patología , Angiografía Coronaria , Enfermedad Coronaria/etiología , Vasos Coronarios/lesiones , Vasos Coronarios/fisiopatología , Elasticidad , Femenino , Humanos , Masculino , Persona de Mediana Edad , Análisis Multivariante , Estudios Prospectivos , Recurrencia , Factores de TiempoRESUMEN
PURPOSE: To determine the time course of elastic recoil (ER) in the first 15min after successful percutaneous transluminal coronary angioplasty (PTCA). METHODS: One hundred and fifty four patients, with stable or unstable angina were successfully submitted to PTCA. Coronary angiography was undertaken shortly after balloon deflation and repeated 5, 10 and 15 min thereafter. Quantitative coronary angiography was performed with the aid of an eletronic caliper. We calculated the minimal luminal diameter (MLD) and elastic recoil in all angiograms. RESULTS: The average artery's reference diameter was 3.09 +/- 0.61mm and the maximal balloon diameter was 2.95 +/- 0.52mm. MLD before the procedure was 0.65 +/- 0.42mm reaching 2.23 +/- 0.55mm immediately after dilatation (p < 0.0001), and decreasing to 2.09 +/- 0.47mm at 5min (p < 0.0001), 2.01 +/- 0.47 at 10min (p < 0.0001) and to 1.91 +/- 0.56mm at 15min (p < 0.0001). ER increased during the 1st 15min after PTCA, averaging 34.29 +/- 20.40%. In the group of patients whose balloon/artery relationship was < or = 1, the total ER was 0.90 +/- 0.74mm at 15min and 1.20 +/- 0.50mm when the ratio was > 1 (p < 0.0001). We noted that ER in the group of patients with residual stenosis ranging from 30 to 50% at the immediate angiogram after PTCA was greater than in the group whose residual stenosis was less than 30%. CONCLUSION: ER is a dynamic and progressive phenomenon taking place within the 1st 15 min after a successful PTCA. Total ER was 34.29 +/- 20.40% at 15min and was greater when balloon/artery relationship was > 1. Residual stenosis ranging from 30 to 50% in the control immediately after the procedure is a predictive factor of greater ER in the 15min following PTCA.
Asunto(s)
Angina de Pecho/terapia , Angioplastia Coronaria con Balón , Vasos Coronarios/anatomía & histología , Angiografía Coronaria , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios ProspectivosRESUMEN
Objetivo - Determinar angiograficamente a retraçäo elástica (RE) nos primeiros 15 minutos após angioplastia coronária (AC) por cateter baläo. Métodos - E um estudo prospectivo, 154 pacientes, portadores de angina estável, foram submetidos a AC com sucesso. Realizaram-se angiografias imediatamente após a última insuflaçäo com sucesso e aos 5,10 e 15 min. Na análise quantitativa utilizou-se caliper eletrônico. Quantificaram-se o diâmetro luminal mínimo (DLM) e a RE no controle imediato, aos 5, 10 e 1min. Relacionaram-se a magnitude da RE e o DLM com as características angiográficas da lesäo tratada, com o diâmetro do baläo e com o grau de lesäo residual imediatamente após a AC. Resultados - O diâmetro de referência médio do vaso foi de 3,09+/_0,61 mm e o diâmetro do baläo de 2,95+/_0,52 mm. O DLM mínimo pré dilataçäo foi de 0,65+/_0,42 mm, atingindo 2,23+/_0,55 mm após a dilataçäo (p<0,0001), decrescendo para 2,09+/_0,47 mm e 5 min (p<0,0001), 2,01+/_0,47 mm em 10 min (p<0,0001) e para1,91+/_0,56 mem 15 min. (p<0,0001). A RE aumentou progressivamente, atingindo 34,29+/_20,40 por cento aos 15 min. Nos vaso tratados onde a relaçäo baläo/artéria < ou igual a 1 a RE foi de 0,90+/_0,74 mm em 15 min. e de 1,20+/_0,50 mm quando a relaçäo foi >1 (p<0,0001). Identificou-se maior RE nos primeiros 15 min. no grupo de pacientes onde a lesäo residual no controle imediato situou-se entre 30 a 50 por cento do que no grupo onde a lesäo residual foi < 30 por cento. Conclusäo - A RE é um fenômeno dinâmico e progrssvo que ocorre dentro de 15 min. após a AC com sucesso. Determinou reduçäo média de 34,29+/_20,40 por cento no diâmetro do vaso em 15 min. e é maior quando a relaçäo baläo/artéria é >1. A lesäo residual que situa entre 30 e 50 por cento no controle angiográfico imediato é fator preditor de maior RE ao longo dos 15 min.
Asunto(s)
Angioplastia de BalónRESUMEN
Cryptogenic cirrhosis defines a group of undetermined etiology that would either be caused by factors as alcohol, virus and others or be due to still unknown etiological factors. To test these hypotheses we have looked for similarities or differences in clinico-biochemical presentation of 196 cases of alcoholic, viral and cryptogenic cirrhosis. Age, jaundice, spiders, palmar erythema and factor V showed a statistically significant difference of the cryptogenic cirrhosis when compared with both alcoholic and viral etiologies. On clinico-biochemical grounds it could be suggested that cryptogenic cirrhosis would constitute a discrete group, based on the following parameters: predominance of females, a more advanced age, less marked peripheral signs of chronic hepatic failure (jaundice, spiders and palmar erythema) besides milder alterations of laboratory liver function tests.